Frictional gearing.



No. 798,737. PATENTED SEPT. 5, 1905. F. W. LINDGRBN L. FAUST. PRICTIONAL GEARING.

APPLICATION FILED NOV. 25. 1904A C3; (5m/11175. y s* UNTED STATES PATENT @FETCH FRICTIONAL GEARING.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application tiled November 25, 1904. Serial No. 234.175.

To fI/ZZ 'fell/07st it may Concern:

Be it known that we, FRANK IV. LINnGrtnN and LnvIN FAUsT, citizens of the United States of America, residing' at Rock ford,in the county of lVinnebago and State of Illinois, have invented certain new and useful Improvements in Frictional Gearing', of which the 'following is a specification.

The object of our invention is to provide means for mounting and regulating the friction of the friction-pulleys of drilling and other machines; and it consists of certain new and useful features of construction and combinations of parts especially devised to those ends, all as hereinafter fully described, and specifically pointed out in the claim appended hereto.

Referring to the accompanying drawings, which Yform a part of this specification, Figure I is a side elevation, in partial section, of the base of a d rilling-macbine embodying our invention. Fig. 9. is a section at the dotted line 2 2 in Fig. I of parts there shown. Fig. 3 is a section at the dotted line 3 3 in Fig. 1 of parts there shown.

Like letters of reference indicate correspondingl parts throughout the several views.

A is the base of the drilling-machine frame and is provided with upwardlyextending arms A A2, havingeoncentrichorizontal openings A A and an oblique opening A5 therein and also having an oblique bearing A c'oncentric with the opening A" therein.

B is a tubular shaft-bearing. mounted horizontally in the opening A3 in the arm A by means of horizontal opposite pivots B Bi, projecting into corresponding sockets B:s B'l in such bearing.

(l is a tubular shaft-bearing mounted horizontally in the opening V in the arm A2 by means of vertical opposite pivots (I U, projecting into sockets C J in such bearing.

The pivots B Bi C U3 are threaded and are also supported in correspomlingly-threaded bearings in the parts A AA", so that the shaftbearings B G may be accurately alined with each other and nicely adjusted both laterally and vertically.

l) is a shaft mounted in the pivotally-supported bearings B C.

I) D are respectively fast and loose pulleys on the shaft I).

E is a friction-pulley havingspline connection with the shaft D in order that it may be freely slid thereon laterally and vet revolve therewith.

F is a sleeve having the middle and lower portions thereof threaded exterior-l),1 and mounted in the bearing A5'in the part A, so that it may be slidably adjusted endwise therein.

F is a nut applied to and rotatable on the exterior-'of the sleeve F to adjust the same.

G is a shaft mounted obliquely in the sleeve F and bearing A" in the part A.

G is a cone friction-pulley fast mounted on the lower portion of the shaft G- in such manner that any part of its periphery maybe caused to engage frictionally with the preferably leather-covered periphery of the Afriction-pulley IC.

H Il are collars on the shaft G, having' annular raeeways l'l`5 in their adjacent 'faces and included between and contacting the lower end of the sleeve F and the upper end of the hub of the friction-pulley (i.

l represents balls resting in the raceways in the collars l'l Il to form ball-bearings therewith.

J is an extension of any desired length of the shaft (t and is preferably connected therewith by means of a connecting-collar J and pins J2. A bevel-gear (not shown) is usually `fast mounted on the upper end portion of the shaft J and meshed with a bevel-gear (not shown) fast mounted usually on a vertical shaft. (Also not shown.)

The employment of shaft-bearings B C, mounted horizontally and vertically by means of the horizontal and vertical opposite pivots B BA2 C' G2 in the manner hereinbefore shown and described, renders it practicable to quickly and accurately aline and adjust such bearings and their shaft l).

By adjusting the sleeve F up and down in its bearing Az" by means of the nut F the frictional contact between the pulleys IG (1imay be nicely regulated.

llaving fully diviscribed our invention, what we claim as new, and desire tosecure by Letters latent,y isY In mechanism of the class described, in combination, a supporting-frame having' concelltric horizontal openings A" A' and bearings A5 and A" therein, a tubular shaft-lnaring B, mounted horizontally in the opening' A:i in the frame, by means of horizontal opposite pivots B B2 projecting into eorrespondingl sockets BB in s ucli bearing, a tubular shaftbearing U, mounted horizontally in the opening A in the frame, by means of vertical opposite pivots C Ci projectingl into correspond- IOO ing sockets C3 C1t in such bearing, a shaft D mounted in the pivotally-supported bearings B C, a friction-pulley E having spline connection with the shaft D, a sleeve F having its lower portion threaded eXteriorly and mounted in the bearing' A5, in the supportingrarne, s0 that it may be slidably adjusted endwise therein, a nut F applied to and rotatable on the exterior of the sleeve, a shaft G mounted obliquely in the sleeve F and bearing` A in the supporting-frame, a Cone frietion-pulley G' fast mounted on the shaft G, in such manner as to 'rietionally engage the periphery of the pulley E, on the shaft D, eollars H H', on the shaft G, having annular raeeways H2 in their adjacent faces and included between and contacting the lower end of the sleeve F and upper end of the hub ot' 

